Amachine has a mechanical advantage of 5. what force should be applied to the machine to make it apply 3000 n to an object?

--a--0.002 n
--b--600 n
--c--3000 n
--d--15,000 n

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

The green colored pigment in chloroplasts is? a. nitrogen b. chlorophyll c. chlorophorm d. chlorofloromethane

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute